<template>
  <el-form ref="loginFormRef" :model="loginForm" :rules="loginRules" size="large">
    <el-form-item prop="username">
      <el-input v-model="loginForm.username" placeholder="用户名：admin / user">
        <template #prefix>
          <el-icon class="el-input__icon">
            <user />
          </el-icon>
        </template>
      </el-input>
    </el-form-item>
    <el-form-item prop="password">
      <el-input
        v-model="loginForm.password"
        type="password"
        placeholder="密码：123456"
        show-password
        autocomplete="new-password"
      >
        <template #prefix>
          <el-icon class="el-input__icon">
            <lock />
          </el-icon>
        </template>
      </el-input>
    </el-form-item>
  </el-form>
  <div class="login-btn">
    <el-button :icon="CircleClose" round size="large" @click="resetForm(loginFormRef)"> 重置 </el-button>
    <el-button :icon="UserFilled" round size="large" type="primary" :loading="loading" @click="login(loginFormRef)">
      登录
    </el-button>
  </div>
</template>

<script setup lang="ts">
  import { ref, reactive, onMounted } from "vue"
  import { useRouter } from "vue-router"
  import { HOME_URL } from "@/config"
  import { getTimeState } from "@/utils"
  import { Login } from "@/api/interface"
  import { ElNotification } from "element-plus"
  import { loginApi } from "@/api/modules/login"
  import { useUserStore } from "@/stores/modules/user"
  import { useTabsStore } from "@/stores/modules/tabs"
  import { useKeepAliveStore } from "@/stores/modules/keepAlive"
  import { initDynamicRouter } from "@/routers/modules/dynamicRouter"
  import { CircleClose, UserFilled } from "@element-plus/icons-vue"
  import type { ElForm } from "element-plus"
  import md5 from "js-md5"

  const router = useRouter()
  const userStore = useUserStore()
  const tabsStore = useTabsStore()
  const keepAliveStore = useKeepAliveStore()

  type FormInstance = InstanceType<typeof ElForm>
  const loginFormRef = ref<FormInstance>()
  const loginRules = reactive({
    username: [{ required: true, message: "请输入用户名", trigger: "blur" }],
    password: [{ required: true, message: "请输入密码", trigger: "blur" }]
  })

  const loading = ref(false)
  const loginForm = reactive<Login.ReqLoginForm>({
    username: "",
    password: ""
  })

  // login
  const login = (formEl: FormInstance | undefined) => {
    if (!formEl) return
    formEl.validate(async (valid) => {
      if (!valid) return
      loading.value = true
      try {
        // 1.执行登录接口
        const { data } = await loginApi({ ...loginForm, password: md5(loginForm.password) })
        userStore.setToken(data.access_token)

        // 2.添加动态路由
        await initDynamicRouter()

        // 3.清空 tabs、keepAlive 数据
        tabsStore.closeMultipleTab()
        keepAliveStore.setKeepAliveName()

        // 4.跳转到首页
        router.push(HOME_URL)
        ElNotification({
          title: getTimeState(),
          message: "欢迎登录 Geeker-Admin",
          type: "success",
          duration: 3000
        })
      } finally {
        loading.value = false
      }
    })
  }

  // resetForm
  const resetForm = (formEl: FormInstance | undefined) => {
    if (!formEl) return
    formEl.resetFields()
  }

  onMounted(() => {
    // 监听 enter 事件（调用登录）
    document.onkeydown = (e: KeyboardEvent) => {
      e = (window.event as KeyboardEvent) || e
      if (e.code === "Enter" || e.code === "enter" || e.code === "NumpadEnter") {
        if (loading.value) return
        login(loginFormRef.value)
      }
    }
  })
</script>

<style scoped lang="scss">
  @import "../index.scss";
</style>
